c++ 时间戳、日期格式、字符串

include<time.h>

time_t t;

t=time(0);//或者 time(&t);

time_t实际一般就是__int64，为时间戳

char now[64];

struct tm *ttime;

ttime = localtime(&t);

strftime(now,64,"%Y-%m-%d %H:%M:%S",ttime);

cout << "the time is " << now << endl;

转换为字符串 ： the time is
2008-05-30 15:29:59

char
* ctime(const time_t *timer); //

char
*str_time = ctime(&t); // 转换成日历类型，包含星期几等信息

printf("str_time = %s\n", str_time);

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